Global Patent Index - EP 1477643 A1

EP 1477643 A1 20041117 - DIESEL EXHAUST GAS PURIFYING FILTER

Title (en)

DIESEL EXHAUST GAS PURIFYING FILTER

Title (de)

REINIGUNGSFILTER FÜR DIESELABGAS

Title (fr)

FILTRE DE PURIFICATION DES GAZ D'ECHAPPEMENT DES DIESELS

Publication

EP 1477643 A1 20041117 (EN)

Application

EP 03705241 A 20030217

Priority

  • JP 0301660 W 20030217
  • JP 2002041485 A 20020219

Abstract (en)

An exhaust cleanup filter which, even if the exhaust temperature is low as during vehicular driving under low load, can trap PM efficiently to prevent clogging by PM buildup and which also is effective in purifying the exhaust from a diesel engine that does not use any burner or heater to remove PM. The cleanup filter is for purifying the exhaust from diesel engines and comprises particulate ceramic porous bodies that have a three-dimensional network structure, as well as artificial pores and communication channels in the interior, with some of the pores being partially exposed on the surfaces of the porous bodies. <IMAGE>

IPC 1-7

F01N 3/022; F01N 3/035

IPC 8 full level

F01N 3/022 (2006.01); F01N 3/035 (2006.01)

CPC (source: EP KR US)

F01N 3/02 (2013.01 - KR); F01N 3/022 (2013.01 - EP US); F01N 3/0224 (2013.01 - EP US); F01N 3/035 (2013.01 - EP US); F01N 2250/02 (2013.01 - EP US); F01N 2330/06 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

DOCDB simple family (publication)

EP 1477643 A1 20041117; EP 1477643 A4 20050427; EP 1477643 B1 20140122; AU 2003211336 A1 20030909; CN 100351501 C 20071128; CN 1633550 A 20050629; HK 1075076 A1 20051202; JP 4055710 B2 20080305; JP WO2003071106 A1 20050616; KR 100764337 B1 20071005; KR 20040088505 A 20041016; MY 143052 A 20110228; TW 200303780 A 20030916; TW I272965 B 20070211; US 2005147541 A1 20050707; US 7384612 B2 20080610; WO 03071106 A1 20030828

DOCDB simple family (application)

EP 03705241 A 20030217; AU 2003211336 A 20030217; CN 03804171 A 20030217; HK 05107316 A 20050822; JP 0301660 W 20030217; JP 2003569981 A 20030217; KR 20047012786 A 20030217; MY PI20030560 A 20030218; TW 92103435 A 20030219; US 50443304 A 20040813